What specific shape characterizes the Xenoposeidon centrum, contrasting it with more primitive sauropod forms?
Answer
Deep, spool-like centrum
A key diagnostic feature separating *Xenoposeidon* from more primitive sauropods relates to its vertebral architecture, specifically the shape of the centrum (the main body of the vertebra). The structure of the *Xenoposeidon* specimen is described as having a deep, spool-like centrum. This morphology is cited as evidence linking it to Advanced Titanosauria, as more primitive forms in the lineage are noted to possess flatter centra.
Related Questions
What does the name Xenoposeidon literally translate to?What specific skeletal element constitutes the holotype specimen of Xenoposeidon proneneukus?What older genus was Xenoposeidon originally described as belonging to before its reclassification by Mike Taylor?What characteristic of the vertebra led to the specific epithet proneneukus for Xenoposeidon?During what geological period did Xenoposeidon exist, based on its association with the Wealden clays?Within which major sauropod clade is Xenoposeidon most frequently assigned, known for dominating the Late Cretaceous?What term describes the unique traits, like those found in the Xenoposeidon vertebra, that allow carving out a separate branch on the family tree?Xenoposeidon's inferred evolution suggests a history distinct from which of these groups, known for being more slender and long-necked?Why must interpretations of Xenoposeidon's limb length or skull shape be treated with significant caution?What specific shape characterizes the Xenoposeidon centrum, contrasting it with more primitive sauropod forms?